San Pedro Sula vs metropolis

San Pedro Sula and metropolis both are nouns.

Word	Noun	Adjective	Verb	Adverb
San Pedro Sula	Yes	No	No	No
metropolis	Yes	No	No	No

San Pedro Sula (noun)	metropolis (noun)
industrial city in northwestern Honduras	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts